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Chapter 2
–
Overview
2-2
RMBA-01 User
’
s manual
The Modbus commands and services supported by the
RMBA-01 Modbus Adapter module are discussed in
Chapter 5. Please refer to the user documentation of
the drive as to which commands are supported by the
drive.
Figure 2-1 The construction of the Modbus link and the RMBA-01 Adapter
module layout.
Delivery check
The option package for the RMBA-01 Modbus Adapter
module contains:
• RMBA-01 module
• Two screws (M3×8 mm)
• This manual.
4
3
2
1
CHA
S
S
IS
RMBA
-0
1
MO
D
BUS
AD
AP
T
E
R
A-
B+
GN
D
SH
L
D
X1
WD
/
IN
IT
TX
D
RX
D
BUS
S1
TE
R
M
.
GN
D
ABB Drive
ABB Drive
Master
station
Slave
stations
Module status LEDs
Fixing screw (GND)
Terminal block for bus
cable connection (X1)
Bus termination switch (S1)
Fixing screw
(CHASSIS)
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